|Season|East Superleague|East Premier League|East Region South Division|East Region Central Division|East Region North Division|
|---|---|---|---|---|---|
|2006–07|Linlithgow Rose|Glenrothes|Newtongrange Star|Dundonald Bluebell|Forfar West End|
|2007–08|Lochee United|Bo'ness United|Fauldhouse United|Ballingry Rovers|Blairgowrie|
|2008–09|Bonnyrigg Rose Athletic|Musselburgh Athletic|Armadale Thistle|St Andrews United|Montrose Roselea|
|2009–10|Bo'ness United|Tayport|Broxburn Athletic|Thornton Hibs|Broughty Athletic|
|2010–11|Bo'ness United|St. Andrews United|Sauchie Juniors|Oakley United|Downfield|
|2011–12|Bonnyrigg Rose Athletic|Sauchie Juniors|Dalkeith Thistle|Jeanfield Swifts|Dundee Violet|
|2012–13|Linlithgow Rose|Newtongrange Star|Fauldhouse United|Kinnoull|Kirriemuir Thistle|

Question: how many years are there in a season?
Answer: 1